/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package control;

import java.io.IOException;
import java.io.PrintWriter;
import java.sql.SQLException;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import model.Artista;
import model.ArtistaDAO;
import model.Usuario;
import model.UsuarioDAO;

/**
 *
 * @author Igor
 */
public class LoginServlet extends HttpServlet {

    /**
     * Processes requests for both HTTP
     * <code>GET</code> and
     * <code>POST</code> methods.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        PrintWriter out = response.getWriter(); 
        RequestDispatcher rd = null;
        try {            
            UsuarioDAO udao = new UsuarioDAO();  
            String email = request.getParameter("email");
            Usuario usuarioAtual = udao.pesquisarPorEmail(email);
            
            if (usuarioAtual != null){
                if (request.getParameter("senha").equals(usuarioAtual.getSenha())){                    
                    HttpSession session = request.getSession(true);
                    
                    ArtistaDAO adao = new ArtistaDAO();
                    Artista artistaAtual = adao.pesquisarPorUsuario(usuarioAtual);                                        
                    session.setAttribute("usuarioAtual", artistaAtual != null ? artistaAtual : usuarioAtual);
                    
                    response.sendRedirect("MenuPrincipalServlet");                    
                }else {
                    out.println("<p>Senha não confere!</p>");
                    rd = request.getRequestDispatcher("/index.jsp");  
                    rd.include(request, response);     
                }
            } else {
                out.println("<p>Email não cadastrado!</p>");
                rd = request.getRequestDispatcher("/index.jsp");
                rd.include(request, response);
            }         
            
        } catch (ClassNotFoundException ex) {
            out.println(ex);
        } catch (SQLException ex) {
            out.println(ex);
            System.out.println(ex);
        } finally {
            out.close();
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP
     * <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Handles the HTTP
     * <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
